I note a new option on the pulldown: "My Comments". I just thought I should point out, though, that it didn't appear until after I'd selected some other option first: that is, the menu only had three options on it the first time.
Just today, MF, but not MT, *does* think I'm logged in, but does *not* fill in the password field on my posting pages automatically. W98/NS4.7x and it's been working ok up til now. Not having the password there, incidentally, preview's you through to a preview page *without* your posting at the bottom; no apparent error message.
The returned URL from a MetaTalk comment posting is not identical to the page from which you posted it, which means that "Back" takes you back to the comment page with the filled in form, rather than back to the parent page, a feature I'd always rather liked...